Interlocking shingles



H. ABRAHAM INTERLOCKING SHINGLES Filed June 13, 1922 v INVENTOR HffiBf/FTABRAH/IM A TTORNE Y HERBERT RAH'AM, OF NEW YO, N. Y., ASSIG-NOR TO THE RUB ID COMP .A oonrona'rron or NEW arms.

application filed June 18,

T 0 all whom it may concern:

Be it known that I, HERBERT ABRAHAM, a citizen of the United States, residing in the city, county, and State of New York, have invented certain new and useful Improvements in Interlocking Shingles, of which the following is a specification. x

(This invention relates to prepared roofing shingles and particularly to an improvement in elements of the character describedin my copending application Serial No. 489,971, filed April 11, 1922.

The object of the invention is to provide improvements in such shingles by which the roof may be covered with less material and will present an attractive appearance, and in which the lowerends or butts of the shingles will be securely held down.

In the accompanying drawing:

Fig. 1 is a plan view of aplurality of courses of overlapped shingles as laid on. a roof, the covered portions of the several shingles being indicated by dotted lines, and

Fig. 2 is a plan view of several shingles laid side b side in a row.

While have illustrated the improvement with reference to individual shingles it is to be understood that it may be embodied in strips consisting of a plurality of shing'les integrally connected together.

The improved shingle is made of prepared roofing comprising a foundation of felt or fibrous material, saturated and coated with bituminous compositions, and generally faced on its weather surface with crushed slate or other mineral particles. v

Each shingle comprises a body 1 having a straight edge 2 and having an extension centrally disposed on the opposite edge to provide a shoulder 3 at either side of the base .of the extension. The extension comprises two mutually similar portions 4 and 5 of trapezoidal form, disposed one above the other with the narrow end of the upper portion joining the wide end of the lower portion. The width of the extension at its middle and outerend is similar and'equal to;double the width of a shoulder 3 so that when several shingles are laid side byside in a row, as seen 1n Fig. 2, uniform-spaces will intervene adjacent extensions.

A vertical slit 6 is formed at either side of the base of the extension, said slits extending inwardly of the body to a depth w came siaema 1922. Serial at, 588,001.

equal to the vertical dimension of the lower portion 5 of the extension which dimension, in the preferred form of shingle, is equal to half the length of the entire extension.

In laying the roof, the shingles are placed in overlapping courses with the laterally projecting corners of the portions 5 of the extensions of each course engaged in the posite parts, the width ofthe outer end of the extension being substantially equal to the width between the innermost points of the angles, the body having an inwardly ex tending slit at either side of the.'base of the extension, the lengths of the slits being substantially equal to the distance from the outer end of the extension to the innermost points of the'angles measured vertically.

2. A prepared roofing shingle comprising a body having anextension on one edge intermediate the ends, the sides of the extension each having a re-enterlng angle in opposite parts, the width of the outer end of. the extension being substantially equal .to the width between the innermost points of the angles, the body having an inwardly extending slit at either side of the base of the extension, the length of each slit being substantially one-half the length of the extension.

. 3. A prepared roofing shingle comprising a body having an extension on one edge and having a shoulder at either side of the extension, the sides of the extension each having a re-entering angle in opposite parts.

the width between the innermost points of the. opposite angles bring substantially twice the width of a shoulder, thebody having an inwardly extending slit at either side of the base'ofthe extension, the lengths of the-- slits being substantially equal to the dis-K tancefrom the outer end of the extension to-the innermost points of the angles measuredvertically.

HERBERT R z. 

